US8640524B2 - Crash test apparatus - Google Patents
Crash test apparatus Download PDFInfo
- Publication number
- US8640524B2 US8640524B2 US13/380,655 US201013380655A US8640524B2 US 8640524 B2 US8640524 B2 US 8640524B2 US 201013380655 A US201013380655 A US 201013380655A US 8640524 B2 US8640524 B2 US 8640524B2
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- United States
- Prior art keywords
- cab
- crash
- fixture frame
- mounting
- test apparatus
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/0078—Shock-testing of vehicles
Definitions
- the present invention relates to a crash test apparatus conducting a crash test of a cab of a truck.
- a conventional crash test of a truck 1 is conducted by crashing a front surface of the truck 1 to a crash barrier 9 in a finished real car state including a cab 3 , a frame 5 , and a load-carrying platform 7 .
- each crash test needs a vehicle, which has given rise to problems such as an increase in development expense and the elongation of an evaluation period.
- the present invention was devised in consideration of such circumstances, and has a proposition to provide a crash test apparatus for truck cabs establishing a bench test method for only a cab without using a real vehicle.
- the present invention includes a fixture frame including a front support device supporting a front part of a cab so as to allow the front part to move in a front and a rear direction and a rear support device fixing and supporting a rear part of the cab, a cart mounting the fixture frame, a protruding barrier disposed in front of the cab, a crash device moving the cart to make the cab crash against the protruding barrier, and a real vehicle frame deformation amount reproduction mechanism disposed between a front of the cart and the protruding barrier, and when the crash device operates to make the cab crash against the protruding barrier, the mechanism reproducing a crash deformation amount of a frame of a real vehicle on which the cab is mounted.
- a frame deformation amount reproduction mechanism reproduces an amount corresponding to the deformation amount of the real vehicle.
- the cab deforms while the front support device supporting the front part of the cab is moving backward, which makes it possible to reproduce a crash similar to that of the real vehicle.
- FIG. 1 is a side view of a crash test apparatus according to an embodiment of the present invention.
- FIG. 2 is a front view of a fixture frame.
- FIG. 3 is a perspective view of an attachment and a cab mounting part used to explain a slide mechanism of the attachment.
- FIG. 4 is a side view of a frame deformation amount reproduction mechanism.
- FIG. 5 is a plane view of the frame deformation amount reproduction mechanism.
- FIG. 6 is an explanatory view illustrating a state where a cab with a different size is mounted on the crash test apparatus in FIG. 1 .
- FIG. 7 is a side view of a crash test apparatus according to another embodiment of the present invention.
- FIG. 8 is a front view of a fixture frame.
- FIG. 9 is an entire perspective view of a gear box jig.
- FIG. 10 is a front view of a fixture frame of a crash test apparatus according to a further embodiment of the present invention.
- FIG. 11 is a side view of a steering column mounting bracket.
- FIG. 12 is an explanatory view illustrating a conventional crash test method.
- FIG. 1 illustrates a crash test apparatus according to an embodiment of the first aspect to the fourth aspect
- the crash test apparatus 11 has a fixture frame 13 , a cart 15 , a protruding barrier 17 , a crash structure 19 , a frame deformation amount reproduction mechanism 21 , and a load-carrying platform jig 23 .
- the fixture frame 13 is to mount a cab C of a truck to be tested thereon, and as illustrated in FIG. 1 to FIG. 3 , on the left and right of a front upper part of the fixture frame 13 , attachments (front support parts: cab mounting part bearings) 27 supporting front cab mounting parts (hereinafter, referred to as “cab mounting parts”) 25 disposed on left and right front lower parts of the cab C are disposed so as to be movable in a front and rear direction of the fixture frame 13 .
- cab mounting parts front support parts: cab mounting part bearings
- the attachments 27 each are a block body having an inverted T-shaped cross section, with its laterally projecting flanges 29 being projectingly provided on its left and right lower parts, and the attachments 27 are disposed on the left and right on the fixture frame 13 so that the flanges 29 project in a left and right direction of the fixture frame 13 .
- An up and down direction width of the fixture frame 13 and the attachment 27 (T in FIG. 2 ) is equal to an up and down direction width a frame of a real car.
- attachments (rear support parts: rear cab mounting part bearings) 35 being block bodies with a rectangular cross section supporting rear cab mounting parts 33 disposed on a rear lower part of the cab C are fixed.
- the fixture frame 13 is firmly fixed on the cart 15 , and wheels 37 for moving the cart 15 in the front and rear direction are attached to the cart 15 .
- the protruding barrier 17 is formed in a rectangular parallelepiped shape, and has a substantially equal width to a width of the cab C.
- the protruding barrier 17 is disposed in front of the cab C, and its front part is fixed to an existing barrier 39 . Further, a lower end of the protruding barrier 17 is set so as to be higher than the attachments 25 .
- the crash structure 19 moves the cart 15 to make the cab C crash against the protruding barrier 17 , and includes a wire 41 whose one end is fixed to the cart 15 and a driving device 43 such as a motor or an engine towing the wire 41 forward.
- the frame deformation amount reproduction mechanism 21 is provided between a front part of the cart 15 and the existing barrier 39 .
- This frame deformation reproduction mechanism 21 reproduces a frame deformation amount of a real vehicle, and is composed of a press device 45 and a support structure 47 , and the press device 45 is one stay and is fixed to a bracket 49 attached to a front end of the cart 15 to be directed forward.
- the support structure 47 is mounted on a base table 51 fixed to the existing barrier 39 , and as illustrated in FIG. 4 and FIG. 5 , it includes pairs of left and right support devices 53 , 55 disposed apart from each other in the up and down direction and a plurality of rollers 57 disposed between the both support devices 53 , 55 at predetermined intervals to extend in the up and down direction.
- a steel 59 is inserted and disposed between the left and right rollers 57 sandwiched between the upper and lower support devices 53 , 55 , and when the crash structure 19 operates, the press device 45 crashes against the steel 59 , so that the steel 59 inserted between the left and right rollers 57 deforms as illustrated by the two-dot chain line and the cab C crashes against the protruding barrier 17 .
- a deformation amount of the steel 59 is a substitute for a frame deformation amount obtained in a real vehicle test, and a cross-sectional dimension of the steel 59 , the number thereof, a position where to insert and dispose the steel 59 between the left and right rollers 57 , and so on are decided based on a basic deformation amount map calculated from a crash speed. Then, as previously described, the cab C crashes against the protruding barrier 17 and the attachments 27 slide backward at the same time with the deformation of the steel 59 , so that a crash similar to that of a real vehicle can be reproduced.
- the load-carrying platform jig 23 is fixed at a position behind the cab C.
- the position of the load-carrying platform jig 23 is changeable to the same position as that of a load-carrying platform of a vehicle on which the cab C is mounted, and the load-carrying platform jig 23 has a shape corresponding to that of the load-carrying platform of the vehicle on which the cab C is mounted.
- the cab C is mounted on the fixture frame 13 , the cab mounting parts 25 of the cab C are supported on the front attachments 27 , and the rear cab mounting parts 33 of the cab C are supported on the rear attachments 35 , whereby the cab C is installed on the fixture frame 13 .
- the crash structure 19 when, from this state, the crash structure 19 is operated to tow the cart 15 forward, the press device 45 of the frame deformation amount reproduction mechanism 21 crashes against the steel 59 , and the steel 59 deforms by an amount corresponding to the deformation amount of the frame of the real vehicle, as illustrated in FIG. 5 , so that the cab C crashes against the protruding barrier 17 .
- the crash test apparatus 11 can reproduce a crash similar to that of a real vehicle in such a manner that, in the state where the cab C is mounted on the fixture frame 13 , the crash structure 19 is operated to make the cab C crash against the protruding barrier 17 , and can also reproduce a crash damage that the cab C receives from the load-carrying platform since the rear side of the cab C crashes against the load-carrying platform jig 23 when the cab C crashes against the protruding barrier 17 .
- FIG. 6 illustrates a state where a cab C- 1 with a different size is mounted on the crash test apparatus 11 .
- the medium-sized cab C is mounted on the crash test apparatus 11
- the large-sized cab C- 1 is mounted on the crash test apparatus 11 .
- it is possible to cope with cabs with various sizes by changing the attachments 27 , 35 to use attachments 27 - 1 , 35 - 1 compatible with the cab C- 1 .
- a steel 59 - 1 compatible with this frame is used.
- FIG. 7 to FIG. 9 illustrate another embodiment of the present invention, and in addition to the structure of the above-described crash test apparatus 11 , a crash test apparatus of this embodiment is capable of reproducing a movement amount (displacement amount) of a steering column (a generic name of all of the steering wheel to the steering shaft) in a real vehicle crash test.
- 61 denotes a gear box jig formed in a cylindrical shape imitating an outer shape of an actual gear box, and similarly to a gear box attached to a cab mounting part on a right front part of a cab of a real vehicle, the gear box jig 61 is fixed via a mounting bracket 63 to a cab mounting part 25 disposed on a right part of a fixture frame 13 .
- a steering shaft 69 of a steering column 67 is attached via a steering column mounting bracket 65 .
- a shaft mounting hole 71 is formed at its center to have an insertion-side tip of the steering shaft 69 inserted therein, and around the shaft mounting hole 71 , four bolt insertion holes 73 are formed at 90° intervals.
- a protruding barrier 17 is disposed at a lower position than that in the crash test apparatus 11 so that the protruding barrier 17 crashes against the gear box jig 61 at the time of a crash test, as illustrated in FIG. 7 .
- the crash test apparatus 11 - 1 also has the crash structure 19 , though not shown.
- 77 denotes a steering wheel, and as already described, the steering wheel 77 and the steering shaft 69 form the steering column 67 .
- the crash test apparatus 11 - 1 is thus structured, and the gear box jig 61 imitating an actual gear box is fixed to the cab mounting part 25 as in a real vehicle and the steering column 67 is attached to the gear box jig 61 as in a real vehicle, and therefore, according to this crash test apparatus 11 - 1 capable of reproducing a crash similar to that of a real vehicle, when the protruding barrier 17 crashes against the gear box jig 61 and the gear box jig 61 deforms, it is possible to simulate behaviors of the steering wheel 77 and the steering shaft 69 (steering column 67 ) at the time of the crash and to measure a damage value of a driver.
- the load-carrying platform jig 23 is not necessary, and when all of them including the deformation amount of the cab C and so on are evaluation targets as in the embodiment in FIG. 7 , the crash test is conducted in a state where the load-carrying platform jig 23 is mounted.
- FIG. 10 and FIG. 11 illustrate yet another embodiment of the present invention, and in a crash test apparatus according to in this embodiment, instead of the gear box jig 61 and the mounting bracket 63 , a steering column mounting bracket 81 with an L-shaped cross section on which a barrier bearing surface 79 facing the protruding barrier 17 is directly fixed to a cab mounting part 25 , and a steering shaft 69 is mounted on a steering column mounting surface 83 of the steering column mounting bracket 81 .
- This embodiment is thus structured, and according to this embodiment, similarly to the aforesaid embodiments, it is also possible to attain the desired proposition, and when the steering column mounting bracket 81 deforms when the protruding barrier 17 crashes against the barrier bearing surface 79 , it is possible to simulate behaviors of a steering wheel 77 and the steering shaft 69 (steering column 67 ) at the time of the crash and to measure a damage value of a driver.
Abstract
Description
- Patent Document 1: Japanese Unexamined Patent Application Publication No. H05-209806
Claims (7)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2008299526 | 2008-11-25 | ||
JP2009-152356 | 2009-06-26 | ||
JP2009152356A JP5237209B2 (en) | 2008-11-25 | 2009-06-26 | Impact test equipment |
PCT/JP2010/004187 WO2010150544A1 (en) | 2009-06-26 | 2010-06-23 | Collision test device |
Publications (2)
Publication Number | Publication Date |
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US20120103056A1 US20120103056A1 (en) | 2012-05-03 |
US8640524B2 true US8640524B2 (en) | 2014-02-04 |
Family
ID=42571027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US13/380,655 Active 2030-06-26 US8640524B2 (en) | 2008-11-25 | 2010-06-23 | Crash test apparatus |
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US (1) | US8640524B2 (en) |
JP (1) | JP5237209B2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013114323B4 (en) * | 2013-12-18 | 2019-05-09 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | crash barrier |
CN104390792B (en) * | 2014-10-29 | 2017-09-29 | 上汽大众汽车有限公司 | Fixed obstacle adjusting means and its dynamic compensation method |
KR101584019B1 (en) * | 2014-12-09 | 2016-01-19 | 현대자동차주식회사 | Truck for crash test |
KR101679962B1 (en) * | 2015-04-14 | 2016-11-25 | 현대자동차주식회사 | carriage structure for vehicle test |
US11175199B2 (en) * | 2019-07-16 | 2021-11-16 | Toyota Research Institute, Inc. | Mobile platform with sacrificial body used to simulate a vehicle during collision testing |
CN110793791A (en) * | 2019-11-19 | 2020-02-14 | 中车株洲电力机车有限公司 | Driver's cab side collision-resistant test device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH026723A (en) | 1988-06-21 | 1990-01-10 | Mazda Motor Corp | Collision tester for vehicle |
JPH05209806A (en) | 1991-12-03 | 1993-08-20 | Mazda Motor Corp | Device for testing collision of vehicle |
US5635624A (en) * | 1995-08-14 | 1997-06-03 | Ford Motor Company | Apparatus for carrying out a crash test on a motor vehicle |
JP2006023118A (en) | 2004-07-06 | 2006-01-26 | Honda Motor Co Ltd | Truck for vehicular collision test |
US6997036B2 (en) * | 2001-07-06 | 2006-02-14 | Honda Giken Kogyo Kabushiki Kaisha | Vehicle impact testing device |
JP2011069645A (en) * | 2009-09-24 | 2011-04-07 | Ud Trucks Corp | Collision test device for body frame of truck |
-
2009
- 2009-06-26 JP JP2009152356A patent/JP5237209B2/en active Active
-
2010
- 2010-06-23 US US13/380,655 patent/US8640524B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH026723A (en) | 1988-06-21 | 1990-01-10 | Mazda Motor Corp | Collision tester for vehicle |
JPH05209806A (en) | 1991-12-03 | 1993-08-20 | Mazda Motor Corp | Device for testing collision of vehicle |
US5635624A (en) * | 1995-08-14 | 1997-06-03 | Ford Motor Company | Apparatus for carrying out a crash test on a motor vehicle |
US6997036B2 (en) * | 2001-07-06 | 2006-02-14 | Honda Giken Kogyo Kabushiki Kaisha | Vehicle impact testing device |
JP2006023118A (en) | 2004-07-06 | 2006-01-26 | Honda Motor Co Ltd | Truck for vehicular collision test |
JP2011069645A (en) * | 2009-09-24 | 2011-04-07 | Ud Trucks Corp | Collision test device for body frame of truck |
Non-Patent Citations (2)
Title |
---|
International Preliminary on Patentability and Written Opinion and its English translation mailed Jan. 12, 2012. International Application No. PCT/JP2010/004187; International Filing Date: Jun. 23, 2010. |
International Search Report dated Jul. 27, 2010. International Application No. PCT/JP2010/004187; International Filing Date: Jun. 23, 2010. |
Also Published As
Publication number | Publication date |
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JP5237209B2 (en) | 2013-07-17 |
US20120103056A1 (en) | 2012-05-03 |
JP2010151791A (en) | 2010-07-08 |
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Owner name: VOLVO GROUP SWEDEN AB, SWEDEN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:UD TRUCKS CORPORATION;REEL/FRAME:055886/0107 Effective date: 20120101 Owner name: UD TRUCKS CORPORATION, JAPAN Free format text: MERGER;ASSIGNOR:NISSAN DIESEL MOTOR CO., LTD.;REEL/FRAME:055886/0091 Effective date: 20140106 Owner name: VOLVO TRUCK CORPORATION, SWEDEN Free format text: CHANGE OF NAME;ASSIGNOR:VOLVO GROUP SWEDEN AB;REEL/FRAME:055886/0166 Effective date: 20120907 |
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